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Rbd1016

RBD1016 is an innovative drug currently being studied in clinical trials for the treatment of chronic hepatitis B (CHB) and chronic hepatitis D (CHD). These trials aim to evaluate the safety, efficacy, and pharmacokinetics of RBD1016 in patients with these conditions. The studies involve various dosing regimens and compare RBD1016 to placebo, with the goal of determining its potential as a new therapeutic option for chronic viral hepatitis.

Table of Contents

What is RBD1016?

RBD1016 is a new investigational drug being developed to treat chronic hepatitis B (CHB) and chronic hepatitis D (CHD) infections[1][2]. It is currently undergoing clinical trials to evaluate its safety and effectiveness. RBD1016 is administered as an injection under the skin (subcutaneous injection)[4].

What Conditions Does RBD1016 Treat?

RBD1016 is being studied for the treatment of two main conditions:

  • Chronic Hepatitis B (CHB): A long-lasting liver infection caused by the hepatitis B virus[1]
  • Chronic Hepatitis D (CHD): A severe form of viral hepatitis caused by the hepatitis D virus, which only occurs in people who are also infected with hepatitis B[2]

Both of these conditions can lead to serious liver problems if left untreated, including cirrhosis (scarring of the liver) and liver cancer.

How is RBD1016 Administered?

RBD1016 is given as a subcutaneous injection, which means it is injected just under the skin[4]. The frequency of injections may vary depending on the specific treatment plan and study protocol. Some examples from current trials include:

  • Once every 4 weeks (Q4W)[1]
  • Once every 12 weeks (Q12W)[1]
  • Two doses given 4 weeks apart[2]

In some studies, RBD1016 is given in combination with other antiviral medications, such as nucleoside analogues (NAs), which are standard treatments for hepatitis B[1][4].

Current Clinical Trials

RBD1016 is currently being studied in several clinical trials:

  1. Phase II trial for Chronic Hepatitis B: This study is evaluating the safety, effectiveness, and how the body processes RBD1016 (pharmacokinetics) in people with chronic hepatitis B[1].
  2. Phase 2a trial for Chronic Hepatitis D: This trial is assessing the efficacy, safety, and pharmacokinetics of RBD1016 in people with chronic hepatitis D virus infection[2].
  3. Phase I trial in healthy volunteers: This study is looking at the safety and pharmacokinetics of a single dose of RBD1016 in healthy people[3].
  4. Phase I trial in Chronic Hepatitis B patients: This trial is evaluating the safety, pharmacokinetics, and early signs of effectiveness of single and repeated doses of RBD1016 in people with chronic hepatitis B[4].

Safety and Side Effects

As RBD1016 is still in clinical trials, its full safety profile is not yet known. The ongoing studies are carefully monitoring for any side effects or adverse events. Some of the safety measures being assessed include:

  • Adverse events (AEs) and serious adverse events (SAEs)[1][2]
  • Changes in vital signs, such as blood pressure and heart rate[3]
  • Electrocardiogram (ECG) results to check heart function[3]
  • Physical examinations and laboratory tests[3]

The safety of RBD1016 will be closely monitored throughout the clinical trials, with follow-up periods lasting up to 85 days after treatment in some studies[3].

Effectiveness of RBD1016

The effectiveness of RBD1016 is still being evaluated in clinical trials. Some of the key measures being used to assess its effectiveness include:

  • Reduction in hepatitis B surface antigen (HBsAg) levels: This is a protein on the surface of the hepatitis B virus. A decrease in HBsAg levels may indicate that the treatment is working[1].
  • Decrease in hepatitis D virus (HDV) RNA levels: This measures the amount of hepatitis D virus in the blood. A reduction in HDV RNA levels suggests the treatment is effective against hepatitis D[2].
  • Changes in other viral markers: These include hepatitis B e antigen (HBeAg), hepatitis B core-related antigen (HBcrAg), and hepatitis B virus DNA and RNA levels[4].
  • Immune system responses: The trials are also looking at changes in T lymphocytes and B cells, which are important parts of the immune system[4].

Future Research and Development

The current clinical trials will help determine the safety and effectiveness of RBD1016. If the results are promising, larger and longer studies may be conducted to further evaluate the drug. Some areas of future research might include:

  • Long-term safety and effectiveness of RBD1016
  • Optimal dosing schedules and treatment duration
  • Combination therapies with other antiviral medications
  • Effectiveness in different patient populations or stages of liver disease

It’s important to note that as an investigational drug, RBD1016 is not yet approved for general use. Patients interested in this treatment should discuss clinical trial opportunities with their healthcare providers.

Aspect Details
Drug Name RBD1016
Conditions Studied Chronic Hepatitis B, Chronic Hepatitis D
Administration Method Subcutaneous injection
Trial Phases Phase I, Phase II
Primary Outcomes Safety assessment, Changes in HBsAg and HDV RNA levels
Secondary Outcomes Pharmacokinetic parameters, Changes in viral markers, Immunological responses
Study Designs Randomized, Double-blind, Placebo-controlled, Dose-escalation
Treatment Duration Varies by study (single dose to multiple doses over several weeks)
Follow-up Period Up to 24 weeks after treatment

FAQ

  • What is RBD1016? RBD1016 is a new drug being tested for the treatment of chronic hepatitis B and chronic hepatitis D. It is administered through subcutaneous injection and is being studied in combination with other antiviral medications.
  • How is RBD1016 being studied? RBD1016 is being studied in several clinical trials, including single-dose and multiple-dose studies. These trials involve different dosing schedules and compare RBD1016 to placebo in patients with chronic hepatitis B or D.
  • What are the main goals of the RBD1016 clinical trials? The main goals are to evaluate the safety of RBD1016, understand how it works in the body (pharmacokinetics), and assess its effectiveness in reducing hepatitis B virus (HBV) and hepatitis D virus (HDV) levels in the blood.
  • What are some of the outcomes being measured in these trials? The trials are measuring changes in hepatitis B surface antigen (HBsAg) levels, hepatitis B virus DNA levels, hepatitis D virus RNA levels, and various other markers of viral activity. They are also closely monitoring for any side effects or adverse events.
  • Who can participate in these clinical trials? The trials are primarily enrolling adults with chronic hepatitis B or chronic hepatitis D. Some studies also include healthy volunteers. Specific eligibility criteria vary for each trial, and participants must meet certain health requirements to be included.

Ongoing Clinical Trials on Rbd1016

  • Study on the Effects of RBD1016 and Tenofovir Alafenamide for Patients with Chronic Hepatitis D Infection

    Not recruiting

    2 1 1
    Investigated diseases:
    Investigated drugs:
    Sweden

  • Study on the Safety and Effects of RBD1016 Injection for Patients with Chronic Hepatitis B on Nucleoside Analogues Treatment

    Not recruiting

    2 1
    Investigated diseases:
    Investigated drugs:
    Sweden

Glossary

  • Chronic Hepatitis B (CHB): A long-lasting liver infection caused by the hepatitis B virus that can lead to serious liver damage if left untreated.
  • Chronic Hepatitis D (CHD): A liver infection caused by the hepatitis D virus, which only occurs in people who are also infected with hepatitis B virus.
  • HBsAg: Hepatitis B surface antigen, a protein on the surface of the hepatitis B virus that is used as a marker of infection.
  • HDV RNA: Hepatitis D virus ribonucleic acid, which is used to measure the amount of hepatitis D virus in the blood.
  • Pharmacokinetics (PK): The study of how a drug moves through the body, including how it is absorbed, distributed, metabolized, and eliminated.
  • Pharmacodynamics (PD): The study of how a drug affects the body, including its mechanism of action and therapeutic effects.
  • Subcutaneous injection: A method of administering medication by injecting it into the layer of tissue just beneath the skin.
  • Placebo: An inactive substance that looks like the drug being tested but has no medical effect, used as a control in clinical trials.
  • Adverse Event (AE): Any unfavorable and unintended sign, symptom, or disease that occurs during a clinical trial, whether or not it is related to the treatment being studied.
  • Nucleoside Analogue (NA): A type of antiviral medication commonly used to treat chronic hepatitis B.

References

  1. https://clinicaltrials.gov/study/NCT05961098
  2. https://clinicaltrials.gov/study/NCT06649266
  3. https://clinicaltrials.gov/study/NCT04685564
  4. https://clinicaltrials.gov/study/NCT05017116